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(No Model.) 3 Sheets-"Sheetl 1. G. H. SPAULDING.

GAVEL SIZING MBGHANISM FOR REAPBRS.

No. 282,581. Patented Aug. 7, 1883.

(No Model.) 3 Sheets-Sheet 2.l

G. H. SPAULDING. Y

GAVEL SIZING MBGHANISM PUR RBAPERS.

Patented Aug. '7i 1883.

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No Model.; 3 sheets-sheet 3.

' G. H. SPAULDING.

GAVEL SIZING MBGKHANISM PoR REAPBRS.

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UNITED STATES `PATENT OFFICE.

` GEORGE H. SPAULDING, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO' WILLIAM DEERING, OF SAME PLACE.

GAVEL-SIZING MECHANISM FOR REAPERS.

SPECIFICATION forming part of Letters Patent No. 282,581, dated August '7, 1883.

l Application filed January 16', 1883. (No model.)

vention and Figs. 4 to 10, inclusive, are perspective views showing details.

The object of my invention is to make the rake wholly automatic in its action; and its nature consists in providing mechanism by means of which the rake may be caused to sweep the platformwhen a sufficient quantityof grain has accumulated to form a gavel, and this independent of the distance traveled by the machine.

In the drawings, A is a quadrant-platform,4 and B the cutting apparatus. C is the rake stand, and C the rake-arms hinged to the gearwheel C2, which revolves on a vertical axis and is driven from the main gearing. The rising and falling motion of the rake-arms is produced and controlled by the cam D and the switch D. At such points as the arms C are controlled by the camD they simply slide around on it, but each arm is provided with a down-hanger and anti-friction roller in such position as to be operated upon by the switch D', which does not differ from many now used, its office being, when turned downward so that its point shall comeA beneath the anti-friction roller, to guide the latter up, and when released by the catch Dl and its point thrown upward by the action of the spring D:i to permit the roller to pass under, and thus hold the rake down While sweeping the platform. The switch is provided below and near its pivot with a slight heel, with which the roller in passing will come in contact, thus throwing the Vlong end downward into position to be held by my invention and need no further mention than that necessary to describe the operation of the machine.

c Beneath the iioor of the platform, parallel with and just behind the cutting apparatus, I place the rock-shaft E, supported in suitable bearings, and having its end upturned, as shown, to come in contact with the lower surface of the catch D2.

E is a flat arm, secured firmly yet adjustably to the shaft'E near the divider end of the platform. Its position along the platform may be at any point so far fromthe stubble end as to be beneath the falling grain when the machine is not cutting full width. A space is provided in the platform in which the arm E vibrates or into which it may be pressed.

Cvl is a wing hinged to the rake-head C3 at c c, and reaching in advance of the rake, and capable of vibrating on its hinges. Its width is about equal to the length of thearm E.

C5 is a torsion-spring of steel wire, one end being bent abruptly andthrust into a small hole in. the upper surface ofthe rake-head C3. It then passes through a staple, c2, also thrust in'to the rake-head, and is bent outward over the wing C4t and enters an eye therein. rIhe office of this spring is to keep the wing turned upward in relation to the rake-head, to which it is hinged. The wing is shown thrown downward. The stress of the spring is sufficient to raise it out of contact with the grain when released by devices hereinafter described.

' To the narrow end of the wingthat end next the harvcster-frame--is riveted the arm b, as shown in Fig. l. This arm has near its middle an eye, through which passes the rakearm C, which forms an axis on which said arm vibrates. The wing is' thrown down through this arm by means now to be described.

To the cam D, I pivot the cam a at c, as shown, its position being such that its pivoted end shall at all times be in the path of the end b of the arm b, whereby the latter, as it passes over it, will be vibrated on its axis and the wing thrown down. The normal position of anti-friction roller ofthe rake-arm passes over y the switch and lifts it.e Vere it not forthe necessity of providing a passageway for the IOO roller aforesaid, the cam a might be fixed to the cam. Its position may be changed, so as not to come in contact with the roller, but I prefer to make it as shown.

The arm E is loosely secured on the rockshaft E.

e is a projecting arm on the shaft E, provided with a threaded eye, through which passes an adjusting-screw, e, upon which rests the arm E. By turning the screw the height of the arm E maybe varied. (See Figs. 7 to 10, inclusive, in which the wide sheet-iron covering is removed to expose the parts.)

In Figs. 7 to 10 I show the upturned end of the shaft E as an arm formed with a latch, D2, to engage the switch D and hold it down. It is shown as a piece secured to the shaft; but I design it to be as one piece with the shaft, and hence he ve designated it by the saine lctter. Acting to draw the upturned arm of the shaft E forward is the spring f. (Shown as a coiled spring in Figs. 3, 4, 8, and 9, and as a flat spring in Fig. 7 j is a screw by which the tension of the spring is adjusted.

In Figs. 8, 9, and l0 I have shown the wing 0" as a shaft journaled on the rake-head 0, with its part b2 adapted to engage the gathering-rod d on the divider-board 0, and with an upturned curve reaching up and over the rake-head and made wide at its end where it opposes the arm E. In this form the spring for retracting the wing is a spiral one surrounding the shaft.

I have shown the wing 0" in all of its forms as opposed by the yielding arm E, the latter being made adjustable; but the wing may be made adjustable, so as to move closer to the arm E, thus producing the same result.

H is a pedal within easy reach from the drivers seat, and connected by the rods 71l 7L and bent lever H to the catch D2, sothat the latter may be controlled at will.

rIhe operation of my invention is as follows: The cut grain falls on the platform in the usual manner, the rakes performing only their offices Vdownward for an instant, but is raised'by the spring 05 as soon as the arm b passes off from the cam a. After the passage of two or three rakes in this mannen the accumula tion ofthe grain on the arm E will be so great that the distance between the wing in its lower position and the arm `E will be more than filled by the grain, and so th'e wing, through the mass of grain, will press the arm E downward, thus rocking the shaft E and disengaging the locking-latch D2 from the switch D. This will permit the latter to rise and the antifriction roller on' the rake-arm vto pass under it, thus depressing the rake, which will then operate to sweep the accumulated gavel across the platform and to the ground.

will automatically produce gavels of substantially uniform size, theresult being attained V by calipering the mass of grain on the platform as each rake passes.

By the use ofthe pedal and the connections the latch D2 is under the control of the attendant, who may thus d rop gavels at will.

l. The combination of the rake-head 03, the vibrating wing 0*, the rake-switch, and intermediate tripping mechanism, for the purpose specified, substantially as described. y

2. The combination of the rakehead, the wing hinged thereto7 the arm b, its operatingcam a, the rake-tripping mechanism, and intermediate operating mechanism, substantially as described.

3. In a reaper, the yielding arm E, upon which the cut grain accumulates, in combination with the opposing vibrating wing 0* and the rake-tripping mechanism, substantially as described.

4. In a reaper, the arm upon which the grain falls, in combination with -an opposing automatically-vibrating wing, means by which their distance apart may be adjusted, and the rake-trippin g mechanism, substantially as and for the Vpurpose described.

In a reaper, the arm E', in combination with the wing 0*, means by which the latter is vibrated to approach the former while ,passing over it to clasp the grain ybetween them, said arm adapted to yield under the pressure Vtransmitted through the clasped grain, and

rake-tripping mechanism, substantially as and for the purpose described.

6. In a reaper, the combination of the'raketripping mechanism, the arm E, adapted to yield under pressure, the wing 0L, means whereby the latter is caused to approach said arm while passing above it to 'clasp the grain between them, the spring f, and intermediate operating mechanism, substantially as de scribed.

7. The combination of the rake-tripping ICO A mechanism, the arm E, adapted to yield un- `der pressure, the wing 0*, means by which the said arm and wing are caused to clasp the grain between them, thepspring f, means by which the tension of the spring is adjusted, and connecting mechanism, substantially as described.

8.- Ihe combination of the arm E with the' switch D and suitable connecting mechanism, substantially as and for the purpose described. 9. The combination ofthe shaft Dthe arm E, -adjustably secured thereto, the switch'D, and' intermediate mechanism, substantially as and for the purpose set forth.

`10. In a reaper, the reel-rake.providedwith the switch D-, in combination with the catch D2 `and means adapted to be operated by the pressure transmitted through the accumulated grain to ,disengage said catch D2, substantially as and for the purpose described.

11. The combination of the switch D, the

It will thus be seen that I have a rake that catch D-, means adapted to be operated bythe 15 ism, consisting of the .rcel which gathers the pressure transmitted through the accumulated l standing grain to the cutters, the rake for grain to disengage said catch, and the adjustable spring f, substantially as set forth.

12. The rake-arm, the Wing 0*, the arm E, the latch DE, connecting mechanism, the switch .D, and the driving mechanism, as and for the purpose described.

13. The automatic gavel sizing raking mechanism, as described, in combination with adjustable mechanism and suitable connecting mechanism Within reach of the attendant,

whereby said sizing mechanism may be con-k trolled at will, substantially as set forth.

14. In a reaper, the gavel-sizing mechana sufficient quantityhas accumulated thereon,

and means connected with said yielding device for putting the rake into operation to sweep off the gavel, all constructed and combi ned substantially as described.

' GEO. H. SPAULDING.

Vit-nesses: l

J. F. STEWARD, JOHN B. KAsPARI. 

